| Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 8, 2013
|
|
|---|---|---|
| Article Number | 13071 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.2971/jeos.2013.13071 | |
| Published online | 24 October 2013 | |
Regular papers
Compact planar lenses based on a pinhole and an array of single mode metallic slits
1
Onera - The French Aerospace Lab, F-91761 Palaiseau, France
2
Laboratoire de Photonique et de Nanostructures (LPN-CNRS), F-91460 Marcoussis, France
3
E´cole Polytechnique, De´partement de Physique, F-91128 Palaiseau, France
Received:
11
September
2013
Revised:
9
October
2013
Plasmonic lenses are based on complex combinations of nanoscale high aspect ratio slits. We show that their design can be greatly simplified, keeping similar performance while releasing technological constraints. The simplified system, called Huygens lens, consists in a central aperture surrounded by several identical single mode slits in a thin gold layer that does not rely anymore on surface plasmons. The focusing behaviour with respect to the position and number of slits is investigated, and we demonstrate the interest of this design to get compact array of lenses.
Key words: Nanolens / plasmonic / nanostructures / interferences / diffraction
© The Author(s) 2013. All rights reserved.
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